Delete row 478932 from events

seq 478932
id evt_0acd901fda73
kind signal_ingest
ts 2026-04-22T04:05:06.422667+00:00
actor collector:discovery
subject_entity_ids []
payload {"created_at":"2026-04-22T04:05:03.222 ...
source_ref rss
confidence 1.0
dedupe_key discovery_new_listings_snapshot:e00e29bc4466426a
episode_id NULL
created_at 2026-04-22T04:05:06.422827+00:00
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